The R-4 brings you a new generation of portable recording. Enjoy superb sound quality. Use the 40GB hard disk drive for extended recording. Record up to four channels at once. Edit waveforms on the recorder itself. All this plus a compact size and light weight that assure outstanding mobility in the field. The Edirol R-4. Gear up for the new generation of portable recording.

Extended Recording with 40GB Hard Disk Drive

Equipped with a 40GB hard disk drive, the R-4 can record up to 17 hours at maximum sound quality or up to 58 hours at CD quality.

Superior 24-bit/96-kHz Linear Recording

Totally uncompressed recording assures outstanding sound quality. Choose 16-bit or 24-bit quantization and a sampling rate of 44.1 kHz, 48 kHz, or 96 kHz. Save data as WAV files.

Simultaneous 4-Channel Recording

The 4 XLR/Phone combo jacks come with switchable phantom power and give you a choice of Mono, Stereo, Stereo X2, or 4CH recording. Digital input/output is also provided. Four-channel recording gives you exceptional flexibility. For example, you can use mics to capture the ambience of a performance hall while using line input to record the performance itself. Or you can record at several different level settings simultaneously.

On-Board Limiter

Built into the analog stage, the Limiter helps deliver a stable and reliable recording free of clipped noise from sudden input surges.

Built-In Nondirectional Stereo Microphones

The R-4's omnidirectional, back electret condenser microphones offer superb transient characteristics and vibration resistance.

Pre-Recording Function

When the Rec button is pressed, the current material is appended to a buffer that contains recorded material from a few seconds earlier. This helps prevent missed recording opportunities or sound bites at the beginning of a recording.

Five High-Quality Effects

The R-4 lets you tailor the sound during both recording and playback.

L Terminal for Linking a Digital Video Camera

The R-4's L terminal lets you connect a similarly equipped digital video camera to synchronize the camera start/stop while R-4 is recording. Counting the camera's two channels, this configuration gives you a total of six audio channels — a wealth of audio data to get creative with.

Waveform Editing Using Only the R-4

The R-4 is all you need to edit waveforms. Just watch the waveform on the LCD as you edit. Scrubbing playback with the shuttle dial lets you set the edit points precisely by sound.

Index Any Point Instantly

Press the mark button anytime during recording or playback to mark that point for easy, instant indexing later. With the A-B repeat function you can set two points and repeatedly play back the material between them.

Easy Playback with the Jog Dial

Use the jog dial to fast-forward or rewind at any of seven speed levels.

Built-In Stereo Speakers

The R-4's built-in speakers make it easy to monitor recorded sound without headphones.

USB 2.0 Terminal Provides a High-Speed Computer Data Link

The USB 2.0 high-speed mode transfers data about 20 times faster than DAT. You can also use the R-4 as a 40GB storage device. Edit R-4 files directly from DAWs and other applications.

CompactFlash™ Slot

The CompactFlash™ slot makes it easy to read or write recorded files. You can use CompactFlash™ memory to give data to colleagues or to transfer data to equipment not equipped with a USB interface.

2-Way Power Supply

The R-4 runs on eight AA batteries or with the AC adaptor.

Digital Audio Input/Output

Exchange data with other digital equipment while maintaining fidelity with the coaxial digital audio in/out.

Soft Carrying Case

The R-4 comes with a soft carrying case with a shoulder strap for safe, comfortable use in the field.

Specifications

Connectors

• Channel 1/2 3/4: XLR/Phone type (phantom powered: XLR only)

Impedance

• 4 k Ohms or more

Frequency Response

• 44.1kHZ: 20Hz to 20kHz (0 dB/-2dB)
• 48kHz: 20Hz to 22kHz (0 dB/-2dB)
• 96kHz: 20Hz to 40kHz (0dB/-3dB)

Nominal Input Level

• Channel 1,2,3,4: -60 to +4 dBu (Variable)

Output

• Connectors: RCA Phono type (L,R)
• Headphones Jack Stereo: 1/4” Phone Type
• Impedance: L,R: 950 Ohms, Phones: 10 Ohms

Output Level

• L,R: -7.8 dBu (-10 dBV)
• Phones: 30mW +30mW (32 Ohms load)

Digital Input/Output

• Digital Output Jack: Coaxial Type (conforms to IEC60958)
• Digital Input Jack: Coaxial Type (conforms to IEC60958)
• USB Connector
• B Type
• L-Connector
• Mini-Miniature Phone Type *Receive Only
• Card Slot
• CompactFlash
• Effect Unit

Tone Control

• Shelving EQ
• Graphic EQ
• Enhancer
• Noise Reducer
• Compressor
• *96kHz: Invalid

Control

• Controls
• Input Gain Knobs (CH1, CH2, CH3, CH4)
• Input Level Switch (CH1/2, Line, Mic)
• Input Level Switch (CH3/4, Line Mic)
• Monitor Knob
• Jog Shuttle
• Transport Buttons (Prev, Next, Stop,Pause, Play, Rec)
• Function Buttons
• Hold Switch
• Phantom Switch (CH1/2, CH3/4)
• Limiter Switch

Display

• 128 x 64 Graphic LCD

Signal Processing

• AD/DA Conversion: 24-bit
• Headroom: 12 dB

Sample Rate

• AD/DA Conversion 44.1/48/96kHz

Digital Output

• 44.1/48/96kHz

Digital Input

• 32kHz to 96kHz (Convert to internal sample rate)

Hard Disk Capacity

• 40GB

Recording Time

• 16-bit/44.1kHz: 58 hours, 16-bit/48kHz: 53 hours, 24-bit/96kHz: 17 hours
• Power Supply
• DC 9V(AC Adapter)
• AA Battery x 8

Dimensions

• 254(W) x 221.8(D) x 72.2(H)mm

Weight

• 1.7kg

Accessories

• USB Cable
• AC Adapter (PSB-1U)
• AC Cord
• Owner’s Manual
• Carry Case